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Scar tissue helps to hold an organ together but does not restore normal function of the damaged tissue.

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Nervous tissue consists predominantly of two cell types,neurons and __________.


A) fibroblasts
B) chondrocytes
C) neuroglia
D) myocytes
E) osteocytes

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Which of the following is not a feature that connective tissues have in common?


A) Very conspicuous fibers
B) The presence of fibroblasts
C) The presence of collagen
D) Ground substance with a gelatinous to rubbery consistency
E) A calcified matrix

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The replacement of damaged tissue with scar tissue is called _________.


A) necrosis
B) apoptosis
C) gangrene
D) regeneration
E) fibrosis

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Excitable cells respond to outside stimuli by means of changes in plasma membrane shape.

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Blood consists of cells and a ground substance made of formed elements.

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The basement membrane is found between __________ and __________.


A) epithelium; connective tissue
B) epithelium; extracellular material
C) epithelium; intracellular material
D) extracellular material; intracellular material
E) interstitial fluid; extracellular fluid

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With regard to the healing of a skin wound,macrophages ___________.


A) release histamine to increase blood flow to the area
B) produce and secrete collagenous fibers
C) phagocytize and digest tissue debris
D) stimulate epithelial cells to multiply
E) make capillaries more permeable allowing white blood cells to migrate into the area

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Most kidney tubules are made of __________ epithelial tissue,which is specialized for absorption and secretion.


A) simple columnar
B) stratified columnar
C) pseudostratified columnar
D) simple cuboidal
E) stratified cuboidal

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Astronauts in zero gravity are able to move food through their digestive tracts because __________.


A) smooth muscle produces waves of contractions that propel material through the digestive tract
B) skeletal muscle puts pressure on the digestive tract
C) cardiac muscle maintains a high pressure that moves material through the digestive tract
D) striated muscle creates a pressure gradient that forces material from one end of the digestive tract to the other
E) skeletal muscle sphincters contract and allow materials to move through the digestive tract

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A

A connective tissue fiber refers to a(n) __________,a nerve fiber refers to a(n) __________,and a muscle fiber refers to a(n) __________.


A) entire cell; organelle; tissue
B) organelle; entire cell; part of a cell
C) organelle; entire cell; complex of macromolecules
D) complex of macromolecules; entire cell; part of a cell
E) complex of macromolecules; part of a cell; entire cell

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In an epithelium,there is almost no extracellular matrix.

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Rapid diffusion of oxygen and carbon dioxide through the air sacs (alveoli) of the lungs takes place through __________ epithelium.


A) simple squamous
B) simple cuboidal
C) simple columnar
D) keratinized stratified squamous
E) nonkeratinized stratified squamous

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The __________ gives rise to the __________.


A) mesoderm; digestive glands
B) endoderm; muscular system and skeletal system
C) ectoderm; nervous system and epidermis
D) endoderm; mesoderm
E) mesoderm; endoderm

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C

Smooth and cardiac muscles are under involuntary control.

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The middle primary germ layer is called __________,which gives rise to a gelatinous material called __________,which then gives rise to different types of connective tissue such as bone,muscle,and blood.


A) ectoderm; stem cells
B) mesoderm; mesenchyme
C) endoderm; mesenchyme
D) mesoderm; fibroblasts
E) ectoderm; mesenchyme

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Blood functions to __________________.


A) allow for heart contraction and relaxation
B) store energy for the heart
C) provide support to the heart
D) line the heart chambers
E) transport nutrients to the tissues

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__________ epithelium is the most widespread epithelium in the body,whereas __________ epithelium is rare.


A) Simple columnar; stratified columnar
B) Stratified squamous; stratified columnar
C) Pseudostratified; stratified squamous
D) Simple cuboidal; stratified squamous
E) Stratified squamous; simple squamous

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B

The membrane that lines passageways that open to the exterior environment is called __________.


A) the lamina propria
B) endothelium
C) a synovial membrane
D) a serous membrane (serosa)
E) a mucous membrane (mucosa)

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Fibroblasts and protein fibers are associated with both __________ and __________.


A) dense regular; dense irregular connective tissues
B) plasma; formed elements
C) elastic cartilage; hyaline cartilage
D) spongy bone; compact (dense) bone
E) adipose tissue; reticular tissue

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